Journal Entry:
Imagine that you heat water over a campfire. 1. How can you
tell that energy is transferred to the water? 2. How can you measure the
amount of energy transferred to the water? 3. How can you measure the amount
of energy one stick transfers to the water when it burns?
Learning Intentions
- We will learn what calorimetry is and how it can be used
to determine the amount of heat transferred during a combustion reaction.
- We will learn how to design a procedure to compare the
amount of heat transferred from different fuels during combustion.
Closing Task:
You can
write you pre-lab to compare heat transfer during combustion of different fuels.
Content Standards being covered in this unit:
Student
can identify types of energy and explain energy changes.
Students can create a computational model to calculate the change in the energy
of one component in a system when the change in energy of the other component(s)
and energy flows in and out of the system are known (HS-PS3-1 and CCC Energy and
Matter)
Students can develop a model to illustrate that the release or absorption of
energy from a chemical reaction system depends upon the changes in total bond
energy.(HS-PS1-4 and CCC Energy and Matter) .
Students can develop and use models to illustrate that energy at the macroscopic
scale can be accounted for as a combination of energy associated with the
motions of particles (objects) and energy associated with the relative position
of particles (objects).(HS-PS3-2 and CCC Energy and Matter)
Students can plan and conduct an investigation to provide evidence that the
transfer of thermal energy when two components of different temperature are
combined within a closed system results in a more uniform energy distribution
among the components in the system (second law of thermodynamics) (HS-PS3-4 and
CCC Energy and Matter)